133071155 has 64 divisors (see below), whose sum is σ = 207360000. Its totient is φ = 79792128.

The previous prime is 133071151. The next prime is 133071157. The reversal of 133071155 is 551170331.

It is a cyclic number.

It is not a de Polignac number, because 133071155 - 2² = 133071151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133071151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 893021 + ... + 893169.

It is an arithmetic number, because the mean of its divisors is an integer number (3240000).

Almost surely, 2^133071155 is an apocalyptic number.

133071155 is a deficient number, since it is larger than the sum of its proper divisors (74288845).

133071155 is a wasteful number, since it uses less digits than its factorization.

133071155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 133071155 is about 11535.6471426617. The cubic root of 133071155 is about 510.5378856636.

The spelling of 133071155 in words is "one hundred thirty-three million, seventy-one thousand, one hundred fifty-five".